Autoimmune Lymphoproliferative Syndrome: An inherited autoimmune condition characterized by proliferation of lymphocytes and autoimmunity against the body's own blood cells resulting in premature death of certain blood cells.
More detailed information about the symptoms,
causes, and treatments of Autoimmune Lymphoproliferative Syndrome is available below.

Article Excerpts about Autoimmune Lymphoproliferative Syndrome

ALPS is a rare disease that affects
both children and adults. ALPS stands for Autoimmune
LymphoProliferative
(lim-fo-pro-lif'-er-a-tive) Syndrome. Each of these three
words helps describe the main features of this condition. The word
autoimmune (self-immune) identifies ALPS as a disease of the
immune system. The tools used to fight germs turn against our own cells
and cause problems. The word lymphoproliferative describes the
unusually large numbers of white blood cells (called lymphocytes
(lim'-fo-sites)) stored in the lymph nodes and spleens of people with
ALPS. The word syndrome refers to the many common symptoms shared
by ALPS patients. (Source: excerpt from Autoimmune Lymphoproliferative Syndrome (ALPS): NIAID)

Definitions of Autoimmune Lymphoproliferative Syndrome:

Autoimmune Lymphoproliferative Syndrome is listed as a "rare disease" by the Office of
Rare Diseases (ORD) of the National Institutes of Health
(NIH). This means that Autoimmune Lymphoproliferative Syndrome, or a subtype of Autoimmune Lymphoproliferative Syndrome,
affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)

Ophanet, a consortium of European partners,
currently defines a condition rare when it affects 1 person per 2,000.
They list Autoimmune Lymphoproliferative Syndrome as a "rare disease".
Source - Orphanet

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